What this work involves
Assess the roof structure and waterproofing before choosing a green roof. Consider the weight of the complete system.
- Capacity and build-up
- Drainage and perimeter zones
- Planting and maintenance
Use the following design considerations when coordinating this service with a wider project. Agree which parts apply to your request.
Coordinate envelope work with protection of completed interiors.
What the drawing needs to explain
Combine the design plan with logistics for storage, deliveries and protected zones. Identify who approves each interface before the next stage begins.
Allow for later maintenance
Create one handover dossier listing parties, products and maintenance points. Keep every component location traceable on current drawings.
Which trade-off matters?
Running many trades simultaneously can appear to save time but increases pressure on access and working space. Compare parallel work with a deliberate sequence by building section.
Cost factors for this service
Costs depend on area, roof adaptations, system and access. Ask for the scope and selected specification to be described separately.
Bring this to the discussion
Photographs of the existing situation, available drawings and your requirements for green & sedum roofs. Identify the elements that should remain.
Questions about the work
What should I discuss before arranging green & sedum roofs?
Not every flat roof is immediately suitable. Establish whether the structure, waterproofing and drainage can support the proposed system.
The design situations here illustrate choices; they are not completed projects or a diagnosis of your property.